Receptacles – Closures – With closure opening arrangements for means
Patent
1974-06-17
1976-05-11
Hall, George T.
Receptacles
Closures
With closure opening arrangements for means
B65D 4132
Patent
active
039557081
ABSTRACT:
The present disclosure pertains to a novel score-line construction for easy-opening pull tab type cans, as well as a method for forming said score-line. In this regard, the score-line is disposed closely adjacent to the rim of the container end portion, and includes a substantially perpendicular outer peripheral wall. This arrangement provides, upon formation, a zone of compacted material immediately below the base wall surface of said score-line, which zone has an outer peripheral edge that terminates abruptly and substantially in alignment with the aforementioned perpendicular outer wall surface. Accordingly, upon opening, the path of fracture will follow said outer peripheral wall and be substantially coextensive with the edge of said zone, precluding erratic fracturing of said score-line and the formation of relatively sharp burrs. In addition, there are disclosed several novel can end element constructions for a container of the type described, employing a score-line terminating at spaced locations on a debossed area formed in the end portion. Fracture of the score-line will continue until the debossed area is reached, and thereafter further application of opening force will cause the displaceable panel section defined by the score-line to be bent upwardly about said debossed area. Accordingly, access to the can interior can be had, while the displaceable panel section remains connected to the can proper.
REFERENCES:
patent: 3160302 (1964-12-01), Chaplin
Aubel Leo J.
Hall George T.
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